Unable to fill a simple path

[SteveXCIV]

What I Did

Created a triangle using PathBuilder and added a bundle from the resulting Path using GeometryBuilder and DrawMode::Fill.

Expected Outcome

A triangle is drawn.

Actual Outcome

Nothing appears.

Steps to Reproduce

Gist here: https://gist.github.com/SteveXCIV/99515e05d68694155b3ea9d2e4af7c49

Additional Information

Maybe related to #160 since my triangle does have points that are very close to each other. One thing I did note in the gist above is that using DrawMode::Stroke does the expected thing and draws a line. So it seems to me that the geometry itself isn't broken and it's something to do with the material generated for a filled shape, but I'm not sure.

[SteveXCIV]

Quick update; I don't think this is related to the points being close together. I tried a quick experiment with my gist code above where I multiplied each point by 50.0 and then scaled by the reciprocal using the Transform and I'm still seeing only the stroke render.

[SteveXCIV]

I'm closing this issue because the problem ended up being the way I was creating my path. For anyone who finds this in the future, you can't call move_to between each vertex as this will close the in-progress path, so the general pattern should be:

builder.move_to(start);
for endpoint in endpoints.iter() {
    builder.line_to(endpoint.clone());
}
builder.close(); // optional, if you want to connect the start to the end